>> reporter: it is. it is not clear if russia planned to attack the plant itself. attacks around the plant by its own nature is still dangerous because shells can go astray. it was a highly sensitive site . u.s. intelligence said russia might attempt to disconnect them from the power grid, sort of a temporary cutoff to squeeze urban centers as part of a broader plan. i think we should be aware as we go into this, the fire is out. as you said, john, the technicians there, the people running the plant are still running the plant. but of course under duress. under the point of a gun.